Calmetrix I-Cal 8000 User Manual page 15

Isothermal calorimeter for concrete and cement
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Command area.
This area is used to operate the I-Cal's logging functions
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Select output to plot: Voltage is raw data measured by heat sensors.
Power is heat flow normalized per unit of dry cement or cementitious
material. Energy is accumulated heat per unit of dry cement or
cementitious material.
Detects if a Calibration file is present. A Green indicator means that
the Calibration file is present and loaded. If the indicator is Red,
locate and install the Calibration file as indicated in Section E below
Voltage: real-time measurement by sensor.
Status: yellow with time if logging is active, gray if logging is inactive.
Last logged: displays last value logged by sensor
If you purchased an I-Cal with Temperature Control Unit, the "Turn
Controller On" will be highlighted in blue. Set T env: enter desired
test temperature between 5°C and 60°C and press "Turn Controller
ON". Remember to set the desired temperature at least 24 hours
before testing begins.
Actual T env: actual temperature at sample stage of calorimeter.
Should be within 1 C of target temperature before commencing
testing.
T block: "Cold junction" temperature inside data logger- typically 2-
4°C higher than actual temperature.
Copy/Paste functions for data contained in the Mix Configuration
area. These commands facilitate copying a mix configuration
from one channel to another. Configuration Templates are for
frequently used mixes. Press Update Configuration to save any
changes to configuration data.
Start logging each channel as close as possible to the time when
water enters in contact with the cement.
Stop logging the selected channel – you can stop an experiment
at any time up to the logging time defined in (b).
You can start logging all channels at once – however it is
recommended that each channel be started individually. This is
because when reports are generated later, "time zero" is defined
as the time when logging started
View Calibration Data: displays constants and baseline offsets
as a function of time. The I-Cal has been pre-calibrated at 5, 22
and 60°C and automatically extrapolates to select the correct
values depending on your test temperature.

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